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Volumn 32, Issue 6, 1999, Pages 2061-2064

Synthesis of hyperbranched aromatic polyamide from aromatic diamines and trimesic acid

Author keywords

[No Author keywords available]

Indexed keywords

ACIDS; AMINES; AROMATIC POLYMERS; MACROMOLECULES; MOLECULAR STRUCTURE; POLYCONDENSATION; SYNTHESIS (CHEMICAL);

EID: 0032685920     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma980771b     Document Type: Article
Times cited : (280)

References (30)
  • 7
    • 0001355047 scopus 로고
    • Mark, H. F., Bikales, N. M., Overberger, C. G., Menges, G., Eds.; John Wiley & Sons: New York
    • Preston, J. In Encyclopedia of Polymer Science and Engineering; Mark, H. F., Bikales, N. M., Overberger, C. G., Menges, G., Eds.; John Wiley & Sons: New York, 1988; Vol. 11, p 381.
    • (1988) Encyclopedia of Polymer Science and Engineering , vol.11 , pp. 381
    • Preston, J.1
  • 17
    • 13044317923 scopus 로고    scopus 로고
    • note
    • a reaches 0.87, a becomes 0.5 and gelation occurs statistically.
  • 18
    • 13044316401 scopus 로고    scopus 로고
    • note
    • ppm) 165.81, 165.56, 164.02, 163.77, 135.45, 135.30, 134.66, 131.81, 131.66, 131.48, 131.31, 130.41, 130.31, 120.66, 120.62, 119.25.
  • 19
    • 13044269497 scopus 로고    scopus 로고
    • note
    • The model compound N,N′,N″-triphenyl-1,3,5-benzenetriamide was prepared from 1,3,5-benzenetricarbonyl trichloride and aniline.
  • 22
    • 13044311924 scopus 로고    scopus 로고
    • note
    • The hyperbranched polymer with its DB of 0.5 must have linear units of 50%, dendritic units of 25%, and terminal units of 25% when the degree of polymerization is high enough.
  • 24
    • 13044316402 scopus 로고    scopus 로고
    • note
    • ppm) 10.61, 10.45, 9.91 (amido proton), 8.69, 8.67 (m, aromatic protons from TMA), 7.85, 7.82, 7.08, 7.05 (dd, aromatic protons from ODA), 7.73, 7.70, 6.96, 6.93 (dd, aromatic protons from p-anisidine), 3.75 (s, methyl H).
  • 25
    • 13044293870 scopus 로고    scopus 로고
    • note
    • GPC measurements are carried out in DMF containing LiBr (0.01 mol/L) at a concentration of 0.5-0.7 g/L. Absolute molecular weight was calculated with a laser-light scattering detector connected to the GPC system directly. The specific refractive increment was determined to be 0.242 mL/ g.
  • 26
    • 13044253331 scopus 로고    scopus 로고
    • note
    • 2. The onset temperature was determined from the plateau line around 200 °C because of its hygroscopicity.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.